Hi there. I,m doing an oil change on the forks , replacing top bushes and seal kit. on pulling the forks down with oem springs and spacers taken out the original oil level was 45mm. I thought it would have been 63mm as per manual specs. This is the bikes first fork oil change. also can the springs have a couple of spacers put in just to stiffen them up a tad.? bike has done 95000ks ,had it since new. 2004 model thanks for any input Regards Brian